US7960867B2 - Methods and systems for wireless energy and data transmission - Google Patents
Methods and systems for wireless energy and data transmission Download PDFInfo
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- US7960867B2 US7960867B2 US12/288,586 US28858608A US7960867B2 US 7960867 B2 US7960867 B2 US 7960867B2 US 28858608 A US28858608 A US 28858608A US 7960867 B2 US7960867 B2 US 7960867B2
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/36—Electric or magnetic shields or screens
- H01F27/363—Electric or magnetic shields or screens made of electrically conductive material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
- H01Q7/06—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop with core of ferromagnetic material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
- H01Q7/06—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop with core of ferromagnetic material
- H01Q7/08—Ferrite rod or like elongated core
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
- H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
-
- H04B5/266—
-
- H04B5/48—
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/006—Details of transformers or inductances, in general with special arrangement or spacing of turns of the winding(s), e.g. to produce desired self-resonance
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/36—Electric or magnetic shields or screens
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/14—Inductive couplings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/005—Mechanical details of housing or structure aiming to accommodate the power transfer means, e.g. mechanical integration of coils, antennas or transducers into emitting or receiving devices
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/50—Circuit arrangements or systems for wireless supply or distribution of electric power using additional energy repeaters between transmitting devices and receiving devices
Definitions
- the present invention relates to methods and systems for wireless energy and data transmission.
- the requirement for batteries or other chemical energy storage means may be reduced. In turn this may reduce the need for copper or aluminum cabling manufacturing costs and battery waste, thereby resulting in more environmentally friendly products.
- wireless transmission of energy may also simplify installation, as said devices may be moved without labor intensive rewiring.
- An additional benefit may be gained from the simultaneous transmission of data over the same carrier wave that transmits the energy for similar reasons of utility, device simplicity, and cost reduction through the use of fewer discrete devices in a given device design.
- Such use may also conserve bandwidth in other wireless pure data transmission regimes, which may lead to increased network efficiencies.
- the present invention may provide a system for wirelessly transmitting and receiving energy.
- the system may include an emitter and a receiver.
- the emitter may include a primary emitting winding wrapped around a first support and having first and second ends coupled to a driver and a secondary emitting winding wrapped around a second support and having a first end of the secondary emitting winding coupled to a first top load and a second end.
- the receiver may include a primary receiving winding wrapped around a third support and having first and second ends coupled to first and second inputs of a rectifying circuitry, respectively.
- the first output of the rectifying circuitry may be coupled to a first terminal of one or more capacitors and a second output of the rectifying circuitry may be coupled a second terminal of the one or more capacitors.
- the receiver may further include a secondary receiving winding wrapped around a fourth support and having a first end coupled to a second top load and a second end.
- the second support may be located within the first support and the fourth support may be located within the third support.
- the first support may be located with the second support and the third support may be located within the fourth support.
- the emitter may include a primary emitting winding wrapped around a first support and having first and second ends coupled to a driver, a secondary emitting winding wrapped around a second support and having first and second ends, and a tertiary emitting winding wrapped around a third support and having a first end of the tertiary emitting winding coupled to the first end of the secondary emitting winding and the second end of the tertiary emitting winding coupled to a first top load.
- the receiver may include a primary receiving winding wrapped around a fourth support and having first and second ends coupled to first and second inputs of a rectifying circuitry, respectively, where a first output of the rectifying circuitry is coupled to a first terminal of one or more capacitors and a second output of the rectifying circuitry is coupled to a second terminal of the one or more capacitors.
- the receiver may further include a secondary receiving winding wrapped around a fifth support and having first and second ends and a tertiary receiving winding wrapped around a sixth support and having a first end of the tertiary receiving winding coupled to the first end of the secondary receiving winding and the second end of the tertiary receiving winding coupled to a second top load.
- first support may be located within the second support
- fourth support may be located within the fifth support
- third support may be located above the first and second supports
- sixth support may be located above the fourth and fifth supports.
- the second support may be located with the first support
- the fifth support may be located within the fourth support
- the third support may be located above the first and second supports
- the sixth support may be located above the fourth and fifth supports.
- the present invention may provide for a method of wirelessly transferring data and energy.
- the method may include inputting a data signal, inputting power to a driver, generating a carrier wave with the driver at a resonant frequency of an emitter, modulating the carrier wave based on the data signal to create a combined signal, driving the combined signal to an AC input on the emitter, electromagnetically coupling the emitter to a receiver, reproducing the combined signal in an AC output of the receiver, rectifying the AC output into DC power, demodulating the combined signal into the data signal, and transmitting the data signal to a device.
- the present invention may provide for a method of wirelessly transmitting and receiving energy.
- the method may include transmitting an alternating current into a driver coupled to a primary emitting winding of an emitter, inducing the alternating current into a secondary emitting winding of the emitter, sensing a frequency of the alternating current on the secondary emitting winding, transmitting a feedback signal to the driver based on the frequency, driving the AC current into the primary emitting winding at the resonant frequency of the secondary emitting winding, electromagnetically coupling the emitter to a receiver, inducing the alternating current into a secondary receiving winding of the receiver, inducing the alternating current into a primary receiving winding of the receiver, outputting the alternating current into a rectifying circuitry, rectifying the alternating current into a direct current; reducing ripples on the direct current, and transmitting the direct current to a device.
- FIG. 1A illustrates a general system including a Tesla coil emitter and receiver according to one aspect of the system and method of the present disclosure
- FIG. 1B illustrates a general system including a Tesla coil emitter and receiver in plan view according to one aspect of the system and method of the present disclosure
- FIG. 1C illustrates a schematic representation of a Tesla coil emitter and receiver according to one aspect of the system and method of the present disclosure
- FIG. 1D illustrates a general system including Tesla coil emitter and receiver each with tertiary windings and the primary windings located within the secondary windings according to one aspect of the system and method of the present disclosure
- FIG. 1E illustrates a receiver including materials of high magnetic permeability according to one aspect of the system and method of the present disclosure
- FIG. 2 illustrates a driving circuit detail according to one aspect of the system and method of the present disclosure
- FIG. 3 illustrates a magnetic field coupling of the coils according to one aspect of the system and method of the present disclosure
- FIG. 4 illustrates a receiver rectification circuit detail with capacitor bank according to one aspect of the system and method of the present disclosure
- FIG. 5 illustrates a variable tap implemented on Tesla coil according to one aspect of the system and method of the present disclosure
- FIG. 6 illustrates an example of application of a system to provide power for utilization according to one aspect of the system and method of the present disclosure
- FIG. 7 illustrates a coaxial orientation of emitter and receiver according to one aspect of the system and method of the present disclosure
- FIG. 8 illustrates a Tesla coil emitter and receiver according to one aspect of the system and method of the present disclosure
- FIG. 9A illustrates a reversible Tesla coil system where the function of emitter and receiver may alternate according to one aspect of the system and method of the present disclosure
- FIG. 9B illustrates circuitry for a reversible Tesla coil system where the function of emitter and receiver may alternate according to one aspect of the system and method of the present disclosure
- FIG. 10 illustrates a representative example of a network of Tesla coil emitters and receivers according to one aspect of the system and method of the present disclosure
- FIG. 11 illustrates a representative method of information and power transmission using a Tesla coil system according to one aspect of the system and method of the present disclosure
- one aspect may include two Tesla resonators 101 and 102 , which may be electromagnetically coupled through emitting a time-varying magnetic and/or electric field 9 .
- Tesla resonators 101 and 102 may be oriented parallel to each other.
- the emitting Tesla resonator apparatus (“emitter”) 101 may emit the field, while the receiving Tesla coil apparatus (“receiver”) 102 may subtend the magnetic field from the emitter 101 .
- Parallel orientation of emitter 101 and receiver 102 may ensure maximum flux coupling between them.
- Emitter 101 may include primary winding 1 E, secondary winding 2 E, support apparatus for primary winding 10 E, and support apparatus for secondary winding 20 E; receiver 102 may include primary winding 1 R, secondary winding 2 R, support apparatus for primary winding 10 R, and support apparatus for secondary winding 20 R.
- Primary and secondary windings 1 E, 1 R, 2 E, and 2 R may be composed of any common wiring material used in the implementation or construction of coils and transformers. Other aspects may use other materials.
- Primary structural supports 10 E and 10 R and secondary structural supports 20 E and 20 R may be composed of ceramic, plastic, Plexiglas.RTM., or any other insulating or nonconductive (e.g., dielectric) material.
- Primary winding 1 E and 1 R may be wrapped around primary structural supports 10 E and 10 R, respectively, and secondary windings 2 E and 2 R may be wrapped around secondary structural supports 20 E and 20 R, respectively.
- Windings 1 E, 1 R, 2 E, and 2 R may be wrapped in a helically-coiled fashion, where each primary winding 1 E and 1 R is oriented similarly as its respective secondary winding 2 E and 2 R. In such aspects, the ends of each winding may not be helically-coiled, as, in various aspects, they may be coupled to other windings, circuitry, or to ground.
- Primary and secondary structural supports 10 E, 10 R, 20 E, and 20 R may be cylindrical in shape.
- emitter 101 may be substantially identical to, or identically arranged as, receiver 102 .
- primary windings 1 E and 1 R may be 6 AWG wire; secondary windings 2 E and 2 R may be 24 AWG wire; and tertiary windings 3 E and 3 R may be 28 AWG wire.
- secondary windings 2 E and 2 R may have 1,800 turns; tertiary windings 3 E and 3 R may have 2,400 turns; primary receiver winding 1 R may have 12 turns; and primary emitter winding 1 E may have 28 turns.
- other wire and different number of turns may be used.
- the drawings of the windings in the figures are not intended to show the exact number of turns or ratio of turns used in aspects of the present invention.
- primary structural supports 10 E and 10 R may be about 12 inches each in diameter; secondary structural supports 20 E and 20 R may be about 8 inches each in diameter; and tertiary structural supports 40 E and 40 R may be each about 6 inches in diameter.
- top loads 30 E and 30 R may be each about 2.5 inches thick, about 8 inches in outer diameter, and about 6 inches in inner diameter.
- primary structural supports 10 E and 10 R may have a smaller diameter than secondary structural supports 20 E and 20 R, for example, 6 inches in outer diameter.
- an end cap made of a nonconductive material may be used on the larger of the primary and secondary structural supports 10 E, 10 R, 20 E, and 20 R in order to provide a base for tertiary structural supports 40 E and 40 R.
- other sized supports and top loads may be used.
- top load 30 E and/or 30 R may be provided on the secondary winding 2 E and/or 2 R that may reduce eddy currents and corona and thereby may reduce electric leakage of the device through corona.
- Secondary top load 30 E and 30 R may be comprised of a toroidal metal shape with a hole cut out of the center of the toroid that is penetrated by the inner diameter of secondary support 20 E and/or 20 R of secondary winding 2 E and/or 2 R.
- the final coil in the series may receive top load 30 E and/or 30 R.
- top load 30 E and/or 30 R may reduce energy loss by about 5-10% by reducing eddy currents.
- toroidal top load 30 E and/or 30 R may also use a vertical slit as opposed to the circular hole for similar purposes and effects.
- one aspect may include primary windings 1 E and 1 R wrapped around primary structural supports 10 E and 10 R, respectively, and have primary structural supports 10 E and 10 R located within secondary structural supports 20 E and 20 R, respectively.
- one or more tertiary windings 3 E and 3 R may be wrapped around tertiary structural supports 40 E and 40 R, respectively, which sit on top of primary and secondary structural supports 10 E, 20 E, 10 R, and 20 R.
- tertiary emitting winding 3 E having two ends wrapped around tertiary support structure 40 E may be coupled to the end of secondary emitting winding 2 E that is not connected to ground.
- tertiary emitting winding 3 E may be connected to top load 30 E (or, in other aspects, to another emitting winding in the same pattern (not shown)). In further aspects, tertiary emitting winding 3 E may have more windings than secondary emitting winding 2 R in order to create more voltage if more voltage is desired.
- tertiary receiving winding 3 R having two ends wrapped around tertiary support structure 40 R may be connected to the end of secondary receiving winding 2 R that is not connected to ground.
- the other end of tertiary receiving winding 3 R may be connected to top load 30 R (or, in other aspects, to another emitting winding in the same pattern (not shown)).
- tertiary receiving winding 3 R may have more windings than secondary receiving winding 2 R in order to create more voltage if more voltage is desired.
- the system may include one or more tertiary Tesla resonators (not shown) or emitters (not shown).
- additional windings may be used; therefore, aspects are not intended to be limited to merely two or three windings.
- AC voltage 4 may be presented through application of a solid state driving system that drives primary emitting winding 1 E at the resonant frequency of Tesla resonators' 101 and 102 .
- Receiver 102 may receive energy through electromagnetic coupling to emitter 101 .
- the coil structure of emitter 101 and receiver 102 may be substantially identical, with one difference being the driving circuitry of emitter 101 and the rectification circuitry of receiver 102 .
- emitter 101 and receiver 102 may be provided with the rectification and switching circuits along with circuitry to switch between the two, so that energy may be transferred back and forth between emitter 101 and receiver 102 .
- an electromagnetic field couples emitter 101 to receiver 102 .
- Current from primary winding emitter 1 E ultimately may couple through the exchange of electromagnetic energy into receiver 102 . That is, primary emitting winding 1 E may induce AC voltage 99 on primary receiving winding 1 R through electromagnetic coupling between emitter 101 and receiver 102 .
- AC out 99 may be rectified by full bridge rectifier 5 and may charge capacitor 6 with DC out 91 voltage.
- emitter 101 and receiver 102 may be spatially distributed, either in fixed positions or mobile. These fixed positions may not be in set locations, so long as receiver 102 is within a certain range of emitter 101 that may be determined by the electromagnetic field intensity of a particular device. Likewise, a mobile receiver 102 may not be required to be constrained to a track or fixed path but so long as it remains within a certain range of one or more emitters 101 . In further aspects, multiple emitters 101 and receivers 102 may be used, where several receivers 102 may draw energy from one emitter 101 or a single receiver 102 may draw energy from multiple emitters 101 (and so forth).
- FIG. 1B displays emitter 101 and receiver 102 in plan view according to one aspect of the system of the present disclosure.
- FIG. 1C shows an electrical schematic according to one aspect
- further aspects may include secondary emitting winding 2 E and loading capacitor 13 R, which may be attached to ground 8 E and 8 R.
- secondary emitting winding 2 E may be floating, that is, not connected to electrical ground.
- loading capacitor 13 R may be floating.
- one aspect may include cylinders of high permeability material (e.g., iron, Mu metal, HyMu80) 50 R and 60 R in structural supports 30 R and 40 R, respectively.
- Use of cylinders of high permeability material 50 R and 60 R in receiver 102 may make the power transfer more efficient between emitter 101 and receiver 102 by concentrating the magnetic flux within the windings surrounding the cylinders of high permeability material 50 R and 60 R.
- cylinders of high permeability material 50 R and 60 R may be solid.
- cylinders of high permeability material 50 R and 60 R may be hollow, such as, a sheet of such material wrapped into a cylindrical form.
- high permeability material 50 R and 60 R may be a form in shapes other than a cylinder.
- FIG. 2 shows the driving circuit of emitter 101 according to one aspect of the system of the present disclosure.
- Primary emitting winding lE may be driven by insulated gate bipolar transistors (“IGBT”s) 16 , 17 , 18 , and 19 in an H-bridge configuration with a power source 3 .
- the AC signal to primary emitting winding 1 E may thereby induce a voltage in secondary winding 2 E, initiating the Tesla coil effect.
- Further aspects may include a feedback system that monitors the direction of current via current drive transformer 14 .
- current drive transformer 14 is coupled to secondary emitting winding 20 E.
- Current drive transformer 14 may sense current on secondary emitting winding 20 E, where current drive transformer 14 may provide voltage in response to oscillation at the resonant frequency of secondary emitting winding 20 E.
- Digital feedback signal 15 may be a logic “1” signifying current flowing in one direction and a logic “0” signifying current flowing in the opposite direction.
- Feedback signal 15 may allow the H-bridge to determine when to switch its transistors such that induced current flows into emitter 101 from primary emitting winding 1 E may constructively interfere to increase magnetic flux in emitter 101 .
- the feedback system drives primary emitting winding 1 E at the resonant frequency of secondary emitting winding 2 E.
- feedback signal 15 may create logic signals 20 a and 20 b .
- Logic signals 20 a and 20 b may drive the H-bridge with the frequency, phase, and polarity for an AC in wave to flow to primary emitter winding 1 E to amplify the resonating field in emitter 101 .
- the device may be self-correcting in phase and frequency.
- FIG. 3 shows a magnetic field coupling between emitter 101 and receiver 102 according to one aspect.
- Magnetic flux lines 22 are intended to be drawn to show that secondary receiving winding 2 R of receiver 102 is immersed in field 22 .
- AC voltage 99 may result from the magnetic field coupling and the effect of secondary receiving winding 2 R and primary receiving winding 1 R. Because of the physical properties of Tesla coils, when an exciting voltage is presented to 99 , receiver 102 may be capable of acting as an emitter and transferring energy to emitter 101 .
- Wireless energy transfer may allow the conversion of the AC signal 99 from primary receiving winding 1 R into a useful form.
- the conversion of AC voltage output 99 to DC voltage across capacitor 27 may occur from induced current in primary receiver winding 1 R, which was demonstrated as induced by a coupled magnetic field between Tesla resonators 101 and 102 .
- DC voltage exiting diode array 24 may be imperfect because of possible ripples.
- Output current 99 may be rectified via high recovery speed diodes and diode array 24 and stored into, for example, capacitor bank 401 , as shown according to one aspect.
- adding diodes (not shown) to diode array 24 may allow the system to handle higher voltages.
- capacitor bank 401 may be a system of capacitors for the purpose of storing energy.
- the system may include low inductance polymeric capacitor 26 and snubber capacitor 25 acting as filters connected in parallel to electrolytic capacitor 27 acting as a storage capacitor for fast charging and discharging of capacitors 25 , 26 , and 27 .
- Low internal and external stray inductance may be achieved by minimum length of wires interconnecting capacitors 25 and 26 and capacitor 27 .
- Diode array 24 may be connected to inputs of capacitor bank 401 through leads 402 and 403 between the positive (+) and negative ( ⁇ ) outputs on diode array 24 and the positive (+) and negative ( ⁇ ) inputs on capacitor bank 401 .
- minimizing and equalizing the inductance of leads 402 and 403 may be accomplished by ensuring leads 402 and 403 are of equal length, and as short as possible.
- variable tap 28 on primary receiving winding 1 R of receiver 102 .
- Variable tap 28 may be a moveable and changeable connection on a transformer through which the voltage may be changed.
- Variable tap 28 may change the voltage output to the voltage input ratio, similar to the ways an iron core transformer with multiple primary taps may change in voltage with relative voltage output to voltage input ratio change. Because in aspects, the system is reversible, variable tap 28 may be coupled to primary emitting winding 1 E or emitter 101 .
- further aspects may include receiver 102 with primary receiver winding 1 R and variable pick-up tap 28 .
- primary receiver winding 1 R may be tapped by variable tap 28 , such that the RF output may be about ⁇ 10 Vrms, which yields about ⁇ 14 Vdc, so up to about 2 Vdc may be lost by forward diode drops over rectifying diodes 24 .
- DC rectifying array 24 and capacitors 25 , 26 , and 27 may allow stable and constant DC power to inverter 31 . In further aspects, this may be a particularly useful configuration due to the widespread use of 60 Hz 120 VAC for power applications.
- device 602 may receive DC power from the system by being connected to positive (+) output 27 through wire 601 , and device 32 may receive AC power from DC inverter 31 .
- emitter 101 and receiver 102 may be oriented in a manner whereby the windings could remain parallel but share a common coil axis.
- the coils may be oriented in a similar configuration, for example, as shown in FIG. 1A , but without a common coil axis (not shown), for example, if two coils were placed on different floors of a building (like at the top-left corner of a second floor and bottom right corner of a first floor).
- emitter 101 and receiver 102 may be transposed such that top loads 30 E and 30 R are facing each other.
- an arc suppression system may be implemented on emitter 101 .
- FIG. 8 is illustrated to show such an aspect, given the cylinders labeled 38 surrounding windings 1 R, 2 R, 1 E, and 2 E are constructed as, for example, a gas tight enclosure.
- emitter 101 and/or receiver 102 may be immersed in an atmosphere of higher dielectric breakdown strength compared to air (for example, sulfur hexafluoride) to suppress corona and breakdown arcs.
- cylinders 38 may be vacuums.
- emitter 101 and receiver 102 may be screened by a Faraday-cage type of enclosure 801 to reduce electric fields around the system.
- This aspect may operate as a transformer.
- Driving circuitry 4 may be inside or outside Faraday-cage type of enclosure 801 , but the power supply to driving circuitry 4 is outside Faraday-cage type of enclosure 801 .
- Wire 601 may transfer DC power to device 602 outside Faraday-cage type of enclosure 801 .
- Faraday-cage type of enclosure 801 is connected to ground 7 .
- secondary windings 2 E and 2 R are floating and, therefore, are not connected to grounds 8 E and 8 R.
- Tesla resonators 1501 and 1502 may couple energy to each other and may be “reversible,” i.e., each Tesla resonator 1501 and 1502 may emit and receive energy so either one may be used.
- resonators 1501 and 1502 are each coupled to driving circuits 901 and 902 so each may act as an emitter and/or a receiver.
- IGBT 35 of circuit 901 is set to closed by logic signal 200 , then circuit 901 would function as downstream circuitry of receiver 102 and, therefore, would ultimately produce DC current at DC out 36 (as shown in FIG. 6 ).
- IGBT 35 of circuit 901 is set to open by logic signal 20 Q, then circuit 901 would function as emitter 101 .
- the system of the present disclosure may include receivers 1003 R, 1005 R, and 1006 R and emitters 1001 E, 1002 E, and 1004 E may be arranged to relay energy.
- two emitters 1001 and 1002 transmit energy wirelessly to a receiver 1003 R that is connected through, for example, wires 1008 and 1009 to a third emitter 1004 E.
- Emitter 1004 E may then wirelessly power three separate receivers 1005 R, 1006 R, and 1007 R. It should be noted that this illustration is provided as an example of a repeater winding network and not as a limiting design.
- another aspect of the system of the present disclosure may include the use of imposing a modulation upon the basic carrier wave emitted from emitter 101 .
- Any number of digital or analog modulation methods or schemes may be applied to a basic carrier wave.
- the carrier wave After reception by receiver 102 , the carrier wave may be demodulated to provide information transfer while using the same carrier wave for power transfer. This simultaneous transfer of information and power may be effectuated by using the same devices discussed in aspects of the present invention, e.g., emitter 101 and receiver 102 .
- the system may transmit energy along with an audio signal.
- the audio signal may be modulated, such as with pulse width modulation (PWM) or amplitude modulation (AM) onto, for example, an 80 kHz power carrier signal from emitter 101 E to receiver 102 R embodied within a speaker assembly.
- PWM pulse width modulation
- AM amplitude modulation
- FM frequency modulation
- phase modulation may be used with the system as described in aspects of the present disclosure.
- signal input 1702 is modulated using modulator 1703 and combined with power input 1701 through the driving circuit 4 Q (as shown according in FIG. 2 according to one aspect of the present invention).
- the high-frequency side of the input signal becomes a mixer, imposing the data signal on AC input 99 , which is the carrier wave frequency, generated by driving circuit 4 Q.
- the speaker assembly with emitter 101 E may be placed anywhere within a range of receiver 102 R and be self-powered by reception of power from emitter 101 E to drive electronics to demodulate the carrier signal to reproduce the audio signal.
- demodulator 1704 may be placed to sense combined signal 99 reproduced at the output of the receiver 102 R.
- the signal may be sensed by direct connection or by other means familiar to one of ordinary skill in the art.
- Data signal 1706 is then produced by demodulator 1704 .
- the carrier component of signal 99 is fed into circuitry 1705 , which may include diode array 24 (as shown in FIG. 4 according to one aspect), capacitor bank 401 (as shown in FIG. 4 according to one aspect), and circuitry 603 (as shown in FIG. 6 according to one aspect) as necessary to produce power.
- circuitry for performing driving circuitry 4 Q and modulator 1703 are described in U.S. non-provisional patent application Ser. No. 12/152,525 titled “System and Method for Controlling an Electromagnetic Field Generator,” filed May 15, 2008.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Near-Field Transmission Systems (AREA)
- Inverter Devices (AREA)
- Dc-Dc Converters (AREA)
Abstract
Description
Claims (39)
Priority Applications (2)
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US12/932,966 US8247926B2 (en) | 2007-11-27 | 2011-03-10 | Methods and systems for wireless energy and data transmission |
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US12/313,792 Expired - Fee Related US7940534B2 (en) | 2007-11-27 | 2008-11-25 | Resonant transformer systems and methods of use |
US12/932,966 Expired - Fee Related US8247926B2 (en) | 2007-11-27 | 2011-03-10 | Methods and systems for wireless energy and data transmission |
US12/932,965 Abandoned US20110163729A1 (en) | 2007-11-27 | 2011-03-10 | Resonant transformer systems and methods of use |
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US12/932,966 Expired - Fee Related US8247926B2 (en) | 2007-11-27 | 2011-03-10 | Methods and systems for wireless energy and data transmission |
US12/932,965 Abandoned US20110163729A1 (en) | 2007-11-27 | 2011-03-10 | Resonant transformer systems and methods of use |
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US20090134711A1 (en) | 2009-05-28 |
US7940534B2 (en) | 2011-05-10 |
WO2009070275A1 (en) | 2009-06-04 |
US20090303760A1 (en) | 2009-12-10 |
WO2009070195A1 (en) | 2009-06-04 |
US20110163729A1 (en) | 2011-07-07 |
US20110165837A1 (en) | 2011-07-07 |
US8247926B2 (en) | 2012-08-21 |
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